Right-handed neutrinos and the 2 TeV $W'$ boson

TL;DR

This paper proposes a model where a 2 TeV $W'$ boson decays into electrons and right-handed neutrinos, with implications for neutrino masses, mixing, and observable collider signals.

Contribution

It introduces a model linking a 2 TeV $W'$ boson to right-handed neutrinos, including the tau-neutrino, and predicts specific collider signatures and neutrino mass properties.

Findings

The model explains CMS $e^+ e^- jj$ events with a $W'$ boson.

Predicted cross section relations between different tau and electron channels.

Standard Model neutrinos can have Majorana masses consistent with oscillation data.

Abstract

The CMS $e^+ e^- jj$ events of invariant mass near 2 TeV are consistent with a $W'$ boson decaying into an electron and a right-handed neutrino whose TeV-scale mass is of the Dirac type. We show that the Dirac partner of the right-handed electron-neutrino can be the right-handed tau-neutrino. A prediction of this model is that the sum of the $\tau^+ e^+ jj$ and $\tau^- e^- jj$ signal cross sections equals twice that for $e^+ e^- jj$. The Standard Model neutrinos acquire Majorana masses and mixings compatible with neutrino oscillation data.